Follow the evidence left by the water
From a safe location, note where runoff entered the driveway, where channels formed, and where stone or sediment ended up. A washed shoulder, a strip cut down the center, and erosion around a pipe can point to different issues.
Do not enter moving water, a collapsed crossing, or an undercut edge to inspect it. Keep traffic away from suspected unstable areas and use appropriate emergency services for immediate danger.
Restore support before thinking about appearance
A washout can remove material below the visible surface. The professional may need to evaluate the remaining support, the depth and extent of loss, and safe equipment access before defining the repair.
Ask the proposed scope to distinguish recovery or removal of displaced material, rebuilding damaged sections, surface reshaping, compaction, and any drainage work.
Recurring erosion needs a water-path discussion
Water may arrive from uphill, travel along wheel tracks, spill from a ditch, or back up at a crossing. Surface shaping, the drainage path, and the outlet should be considered together. More gravel in the channel is not a universal remedy.
Useful details for the initial inquiry
Explain whether access is still possible, whether a pipe is exposed or damaged, and whether the same section has washed out before. Photographs taken safely after the event may help a professional later, but uploads are not accepted through this prelaunch site.